#app {
  width: 100%;
  height: 100%;
}
#app {
  background-color: #f0f0f0;
  display: flex;
  flex-direction: column;
}
.header {
  flex: 0 0 60px;
  height: 60px;
  padding: 0 12px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid lightgray;
}
.header-content {
  display: flex;
  cursor: pointer;
}
.header-content img {
  width: 25px;
  height: 25px;
  border-radius: 50%;
  margin: 0 3px;
}
.content {
  display: flex;
  flex: 1;
  min-height: 0;
}
.content .content-left {
  flex: 0 0 140px;
  height: 100%;
  border-right: 1px solid lightgray;
  min-width: 0;
  padding: 8px;
  overflow: auto;
}
.content .content-left .content-left-menu {
  display: flex;
  flex-direction: column;
  justify-items: center;
  align-items: center;
  list-style: none;
}
.content-left-menu > li {
  width: 100%;
  height: 40px;
  padding: 12px;
  text-align: right;
  cursor: pointer;
  transition: all 0.5s;
  margin-bottom: 4px;
  border: 1px solid lightgray;
  border-radius: 5px;
}
.content-left-menu > li:hover {
  background-color: lightgray;
}

.content-left-menu > li.active {
  background-color: rgb(48, 33, 184);
  color: #f0f0f0;
}

.content-right {
  overflow: auto;
  flex: 1;
  padding: 12px;
  position: relative;
}
.content-right .content-right-head {
  position: sticky;
  top: -12px;
  width: 100%;
  height: 60px;
  background-color: #fff;
  margin-bottom: 12px;
  padding: 12px;
  display: flex;
  align-items: center;
  border: 1px solid red;
}
.content-right .content-right-main {
  background-color: #fff;
  padding: 12px;
}
.fixed-buttons {
  position: fixed;
  right: 30px;
  bottom: 50px;
  display: flex;
  flex-direction: column;
}
.fixed-buttons > button {
  margin: 3px 0;
}
.overflow-ellipsis {
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}
#content-1,
#content-2 {
  font-size: 14px;
  color: #f0f0f0;
  background-color: #888;
  font-family: 楷体;
}
#content-2 {
  background-image: url(./imgs/bg.jpg);
  background-repeat: round;
}
.tip {
  font-size: 12px;
  color: red;
}
